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WorksheetsOceans Part 1
Total questions: 17
Worksheet time: 9mins
What major ocean do we live near?
Pacific
Atlantic
Indian
Southern
Why does the ocean get colder the deeper you go?
No more sunlight
Less salt
More Fish
Cleaner water
Seawater is typically denser than freshwater due to seawater's __________.
lower freezing point
smaller mass
greater depth
higher salinity
The high salinity of the Mediterranean Sea is due primarily to _______________.
evaporation
precipitation
deposition
freezing
Why does sea ice formation cause the water to have a higher salinity?
The water and salt both freeze
The water freezes but the salt doesn't
What drives surface currents?
Wind
Changes in density
What causes surface currents to be deflected and form circular gyres?
Convection Currents
Conduction
Coriolis Effect
Hurricanes
True or False: Upwelling is when warm surface water is blown away and replaced with cold nutrient-rich deeper water that rises to the surface.
True
False
True or False: El Nino and La Nina are caused by changes in the strength of tradewinds. Upwelling occurs with La Nina and downwelling occurs with El Nino.
True
False
What drives deep ocean currents?
Winds
Changes in Density
The global conveyer belt moves oceans currents based on density and is also known as the thermohaline circulation.
What does thermohaline stand for?
Temperature
Salinity
Depth
Wind Speed
Why does the California Current contain cold water?
The water originates in Alaska
A deep undercurrent of Antarctic water
Land-Breeze cools water
Not enough sunlight
Why does the Gulf Stream Current along the East coast contain warm water?
Water comes from Alaska
Water comes from the Gulf of Mexico and Equator
There is a lot of sunshine here
This water is cold
During which phase of the moon will the tides be the highest and what is this tide called?
Full Moon & Neap Tide
Full Moon & Spring Tide
Quarter Moon & Neap Tide
Quarter Moon & Spring Tide
During which phase of the moon will the tides be the weakest and what is this tide called?
Full Moon & Neap Tide
Full Moon & Spring Tide
Quarter Moon & Neap Tide
Quarter Moon & Spring Tide
Why are barrier islands not permanent?
Offshore earthquakes
Companies mine the sand
Wind and waves constantly move sand
People remove the sand
What causes Tsunamis?
Wind
Density Changes
Earthquakes
Hurricanes
